Pole-type conductor support



Aug. 5, 1947. R. R. PITTMAN POLE-TYPE CONDUCTOR SUPPORT Filed Jan. 25, 1943 2 Fig.6

lNVENTOR Patented Aug. 5, 1947 UNITED STATES PATENT OFFICE POLE-TYPE CONDUCTOR SUPPORT Ralph R. Pittman, PineBluft, Ark.

Application January 25, 1943, Serial No. 73,571

2' Claims.

This invention relates to conductor supports, and particularly to a pole-type support constructed from a single piece of insulating material, one end of which is, adapted for setting in. the ground and the other end of which is, adaptedv for directly receiving and supporting one or more electric conductors.

Among the objects of the invention may be noted the provision (a) of means for positioning a plurality of tangentially extending conductors in insulated spaced relation directly on the support; (1)) of means for similarly mounting a plurality of laterally extending conductors; cl means for establishing the position of a tie wire employed in fastening a tangentially extending conductor to the support so as to reduce, vibration fatigue of the conductor; and (d) of: means for maintaining a vertically extending ground conductor in spaced insulated relationship with an adjacent laterally extending conductor without the employment of fastening devices of any kind other than the cooperation of the ground wire itself with the support.

With the above-stated, and other objects which will appear later, in view, my invention resides in the novel form, features and construction of the support, as exemplified in the description to follow, and the scope of the invention will be pointed out in the appended claims.

In the drawing: Fig. l is an elevational view of the support in the service position; Figs. 2 and 3 are respectively side and front elevations of the upper portion of the support; Fig. 4 is a side elevational view of the upper portion of the support in which the application of certain electrical conductors is illustrated; Fig. 5 is a section taken along the line 5-5 of Fig. 4; and Fig. 6 is a section taken along the line 6-6 of Fig. 5.

Referring in detail to the drawing, the embodiment illustrated may be constructed from an elongated body of insulating material H), for example, a wood pole, which may be supported in a vertical position by setting the lower end thereof in the ground 38, as shown more or less diagrammatically in Fig. 1. In accordance with well known practice, a ground wire extends longitudinally along the pole 10 from its upper end to a point below the ground 38.

A plurality of side grooves or cavities are provided adjacent the upper end of the pole In for receiving the tangentially extending or line conductor 28, 29 and 39. These grooves are preferably formed in pairs, the grooves of each pair being at the same elevation and on opposite sides of the pole I0, as the pair l5-I6, the pair 2. |9-20, and the pair 23-24, each pair being longitudinally spaced from the other pairs. The tie wire openings 25', 26 and 21 extend preferably diametrically through the pole Ill in a direction parallel to all of the side grooves, the tie wire opening 25 being located above and arranged to cooperate through atie wire with the side grooves l5 and I6, and the openings 26 and 21 are similarily associated respectively with. the side grooves l929, and 2324..

For accommodating, laterally extending conductors, such as service wires to a customer, the upper pair of grooves l1 and 28, and the lower pair of grooves. 2| and 22 are provided, here again each groove of a pair being at the same elevation, and the pairs longitudinally spaced both with respect to each otherand with respect, to the pairs of line wire receiving, grooves. The latter named spacing is particularly desirable in the event of disconnected services, for the reason that a length of pole insulation is interposed between the service wire and the line conductor, and so makes possible the use of uninsulated and bare service wires not heretofore used because both line and service wires are commonly supported from a single insulator. All of the side grooves are preferably arranged in pairs as shown, for the reason that construction requirements may necessitate the use of either or both sides of the pole, in the absence of any attached fittings which it is an object of the present invention to avoid.

A slot I2 extends upwardly in the pole In from a point below the lowermost grooves 23 and 24 to a point above the upper tie Wire opening 25, and at the respective ends of the slot are provided, through the pole, the diametrically extending openings I3 and I4.

Figs. 4, 5 and 6 illustrate an application of electric conductors in the service position on the support. The line wires 28, 29 and 30 are seated respectively in the grooves I6, 20 and 24, and respectively fastened therein by the tie wires 31, 32 and 33, the latter extending respectively horizontally through the tie wire openings 25, 26 and 27, thence outwardly and downwardly, the ends being wrapped around the cooperating line conductor. It may be noticed from the construction here recited, that the line wires pivot about that portion of the tie wire which extends through the pole at an elevation above the associated line wire, so that movement of the line wires in a downward direction is restrained through engagement with the pole, while slight upward movement of the line wires is unrestrained.

extending opening l3, turning sharply at right angles and extending through the latter, thence turning sharply again at right angles and extending upwardly along the bottom or inner surface of the slot [2 to the elevation of the diametrically extending opening l4, thence turning sharply again and extending through the latter, and thence turning sharply upwardly along the side of the pole. With this construction, the resistance to deformation of the ground wire is sufficient to maintain it close to the inner surface of the slot without the use of fasteners of any character.

From the above description, it will be seen that the novel construction herein described is one which eliminates, insofar as moderately low or so-called secondary voltages are concerned, the necessity for the use of any type of insulators and attendant fasteners, and at the same time provides an improved type of support having desirable features heretofore not available.

The above description and illustrated embodiment of my invention is intended as illustrative rather than limiting.

I claim:

l. A single-piece support for an overhead electrio conductor comprising an upstanding pole of insulating material having formed therein grooves, a conductor in the grooves extending peripherally around an upper portion of said pole, a longitudinally extending slot provided in said pole from a point below said conductor to a point above said conductor, a grounded wire located in said slot in spaced relation with said conductor, an opening extending laterally through said pole at each end of said slot and merging therewith, said grounded wire extending through the openings for holding the portion of the grounded wire within the slot in said spaced relation.

2. The combination with an upstanding pole of insulating material, of a conductor extending peripherally around said pole, a longitudinally extending slot provided in said pole from a point below said conductor to a point above said conductor, a grounded wire located in said slot in spaced relation with said conductor, an opening extending laterally through said pole at each end of said slot and merging therewith, said grounded Wire extending through the openings for holding the portion of the grounded wire within the slot in said spaced relation.

RALPH R. PITTMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Luhring Nov. 25, 1924 

